Murray spoke to E! News through his attorneys, and he said he DOES feel bad about one thing: He claims that he was trying to wean Michael OFF propofol. And in doing so, he basically deprived Michael of sleep the night before his death. This, according to the version of the story that Murray's lawyers told during his trial, led Michael to give HIMSELF that fatal dose of the anesthetic.

He also considers it an INJUSTICE that he's behind bars, and says he does NOT owe the Jackson family an apology. In fact, he thinks Michael's family owes Michael an apology for burying him at Forest Lawn cemetery in Glendale, California. Murray says Michael wanted to be cremated and have his ashes spread in the Pacific Ocean. Supposedly, he didn't like California, and wouldn't have wanted to be bound there for eternity.

As for how he's passing his time, Murray spends about 10 hours a day reading. He also plays a "word-of-the-day" game with his fellow inmates. When he gets out of prison, he plans to go back to practicing medicine, and wants to serve humanity in some way.

JERRY SANDUSKY MUST HATE PINK FLOYD BY NOW

Jerry Sandusky was mercilessly taunted for HOURS during his first night in jail back in December -- when his fellow inmates chanted Pink Floyd's famous lyrics ... "Hey teacher, leave those kids alone!" One of the men in the facility at the time -- a 22-year-old named Josh -- described the events to The Daily, saying they sang the song over and over ... all night.

68-year-old Sandusky spent the night in jail following his second arrest on December 7th, 2011 -- after a grand jury voted to charge the former Penn State football coach with an additional 12 counts of child abuse, bringing his new total to 52. Four counts were eventually dropped, leaving 48 remaining. Last week, Sandusky was found guilty on 45. He's currently awaiting sentencing behind bars. Sandusky faces a maximum of 442 years in prison